200 
Catalogue of the Birds of Illinois. 
Genus Nettion, Kaup. 
*290. N. carolinensis (Gmel.) Baird. Green-winged Teal. Resident, but 
chiefly transient. 
Genus Aix, Boie. 
*291. A. sponsa (Linn.) Boie. Summer Duck. Resident southward; sum- 
mer sojourner northward. Usually known as the “ Wood Duck.” 
Genus Fulix, Sundevall. 
292. F. marila (Linn.) Baird. Scaup Duck. Winter resident southward; 
transient northward. Rather rare. Known as the “Black-head” (or “Big 
Black-head”), “Blue-bill,” &c. 
*293. F. affinis (Eyt.) Baird. Lesser Scaup Duck. Chiefly transient, but 
breeds in the northern part of the state ( fide Nelson, p. 141), and winters in 
the southern portion. Much more abundant than the last. Known as “ Little 
Black-head,” &c. 
*294. F. collaris (Donov.) Baird. Ring-necked Duck. The same remarks 
apply to this as to the preceding, but it is less numerous. One of the names by 
which it is most frequently known is that of “ Ring- bill.” 
Genus jEthya, Boie. 
295. JE. vallisneria (Wils.) Boie. Canvass-back Duck. Transient, or occa- 
sionally wintering. 
296. JE. americana( Eyt.) Bp. American Pochard. Transient; occasionally 
wintering. The “Red-head” of sportsmen. 
Genus Clangula, Fleming. 
297. C. islandica (Gmel.) Bp. Barrow’s Golden-eye. Winter sojourner. 
Occurs throughout the state. 
298. C. glaucium americana (Bp.) Ridgw. American Golden-eye. Winter 
sojourner. 
299. C. albeola (Linn.) Steph. Buffle-head. Winter sojourner. Has vari- 
ous popular names, as “ Butter-ball,” “ Di-dipper,” &c. 
Genus Histrionicus, Lesson. 
300. H. minutus (Linn.) Dresser. Harlequin Duck. Winter sojourner. 
Occurring throughout the state. 
Genus Harelda, Leach. 
301. H. glacialis (Linn.) Leach. Long-tailed Duck. Winter sojourner. 
Occurs, like the last, throughout the state on the larger streams. 
Genus Somateria, Leach. 
302. S. mollisshna dresseri (Sharpe) Coues. American Eider. Winter 
visitant, chiefly on Lake Michigan. 
303. S. spectabilis (Linn.) Boie. King Eider. Rare winter visitant (see 
Nelson, p. 143). 
Genus CEde^ta, Fleming. 
304. (E. americana (Sw. & Rich.) Black Scoter. Winter sojourner, chiefly 
on Lake Michigan. 
